This is rather disconcerting. While the Large Image without purge still looks small,
both images with purge appear large.
If we are all seeing different things, then the best explanation I can think of is that there must be some difference between us. I think the first thing is going to be browser cache and cookies. The next would be browser.
Could anyone still seeing all the images as small post their browser, clear their cookies and cache, and then check again? If it fixes the problem, then there's a chance that, though the original source of the problem was caused by Wikia, it has since been fixed and the problem is only continuing on our end.
Even if that does fix it, it's still a rather poor solution because asking every single person who views this thread to clear their cookies and cache is a bit absurd. Perhaps there isn't a simple solution to this...
EDIT: Well I've just cleared
my browser cache and cookies and... all four images are now small for me too. That indicates to me that the more likely explanation is that Wikia has in fact not fixed the problem, and the only reason that the images were appearing as larger was because I did happen to have the larger form cached. However this still raises a number of questions about why it was working with various fixes, suddenly stopped working with one of them, and at no point appeared to be working for anyone else.
On top of that, other images (like
Bulbasaur still appear to be working with the same various fixes, despite their
broken links still remaining broken.
All in all, I'm rather confused...